Scientists have developed a laser-based imaging system that creates high-definition 3D maps of surfaces from as far away as 10.5 metres.
Researchers, including one of Indian origin, have demonstrated the most complex 2-D optical phased array ever that can generate high-resolution beam patterns.
US naval robocopters, carrying powerful sensors, will be able to ferret out small pirate boats even if they are indistinguishable from other vessels.
Day in Pics: 27th March
Showbiz World - March 27, 2015
Germanwings Airbus A320 plane crashes in French Alps